An experimental drug that is supposed to reduce aggression has the opposite effect on a baboon that is being experimented on by a group of medical students and their professor. While they are playing a fantasy role-playing game in their research facility, the baboon escapes and begins hunting them down.
演员：乔·斯皮内尔 卡罗琳·莫罗 阿比吉尔·克莱顿 Kelly Piper Rita Montone 汤姆·萨维尼 Hyla Marrow James L. Brewster Linda Lee Walter Tracie Evans 莎伦·米切尔 Carol Henry Nelia Bacmeister Louis Jawitz Denise Spagnuolo 威廉·拉斯蒂格